Drill

How to drill screw holes in photovoltaic panels

areful precision to achieve the desired results. From determining the right tools to choosing the correct drill bit size, there are several factors to consider. Would it be okay to drill additional. . o never drill additional holes in the solar panel frame. Drilling metals is not very easy so care should be taken. But here's the kicker: 38% of warranty claims stem from improper mounting hardware installation. [PDF Version]